Home / 121,011.12-166,998.24-67,298.40

Finding the Fourth Proportional to 121,011.12, 166,998.24 and 67,298.40

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Solution

The fourth proportional to 121,011.12, 166,998.24 and 67,298.40 is: 92,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,011.12 : 166,998.24 = 67,298.40 : x
  2. Step 2: Convert to fraction form
    121,011.12/166,998.24 = 67,298.40/x
  3. Step 3: Cross multiply
    121,011.12x = 166,998.24 × 67,298.40
  4. Step 4: Simplify right side
    121,011.12x = 11,238,714,354.82
  5. Step 5: Solve for x
    x = 11,238,714,354.82/121,011.12
  6. Step 6: Final answer
    x = 92,873.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.